Sunspot drawing of 1983-2-18

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https://doi.org/10.7891/e-manuscripta-140408



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1983-02-18
08:15
Hs 1304.6:636
https://doi.org/10.7891/e-manuscripta-140408
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
43 13 17 C -17 301
44 1 3 J -13 266
45 1 3 J -9 247
3 15 23